Engine-CodesFord – P1237 2008 Ford Fusion

P1237 2008 Ford Fusion Code - Fuel Pump Secondary Circuit Fault

Quick Answer

The P1237 code for a 2008 Ford Fusion indicates a Fuel Pump Secondary Circuit Fault. Common causes include Faulty fuel pump relay, Wiring issue in the fuel pump circuit, Malfunctioning fuel pump control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1237 2008 Ford Fusion indicates Fuel Pump Secondary Circuit Fault.
Common causes
Common causes include Faulty fuel pump relay, Wiring issue in the fuel pump circuit, Malfunctioning fuel pump control module.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P1237 2008 Ford Fusion Description

The P1237 code for a 2008 Ford Fusion indicates a Fuel Pump Secondary Circuit Fault. This means that there is an issue with the secondary circuit of the fuel pump, which is responsible for delivering fuel from the tank to the engine. The fuel pump is a crucial component of the vehicle's fuel system, as it ensures that the engine receives the correct amount of fuel for combustion.

OBDII Code P1237 2008 Ford Fusion - Fuel Pump Secondary Circuit Fault
P1237 2008 Ford Fusion Code - Fuel Pump Secondary Circuit Fault

Common Causes of P1237 2008 Ford Fusion

  1. Faulty fuel pump relay
  2. Wiring issue in the fuel pump circuit
  3. Malfunctioning fuel pump control module
  4. Defective fuel pump
  5. Electrical issues in the fuel pump system

Symptoms of P1237 2008 Ford Fusion

  1. Engine hesitation
  2. Stalling
  3. Rough idling
  4. Difficulty starting
  5. Misfiring or lack of power during acceleration

How to Fix P1237 2008 Ford Fusion

  1. Begin by conducting a thorough inspection of the fuel pump circuit, including the relay, wiring, and control module.
  2. Test the fuel pump to determine if it is functioning properly.
  3. Replace any faulty components, such as the fuel pump relay, wiring, control module, or the fuel pump itself.
  4. Clear the diagnostic trouble codes from the vehicle's computer using a scan tool.
  5. Test drive the vehicle to ensure that the issue has been resolved and that the code does not return.

Cost to Fix P1237 2008 Ford Fusion

The typical repair costs for a Fuel Pump Secondary Circuit Fault can vary depending on the specific cause of the issue and the cost of parts and labor. In general, the cost of replacing a fuel pump relay or control module can range from $100 to $300, while replacing the fuel pump itself can cost between $300 and $800. Labor costs can add an additional $100 to $300, depending on the shop's hourly rates and the complexity of the repair. It is advisable to check with local auto repair shops for a more accurate estimate based on your specific vehicle and location.

When is the Code Detected?

Fuel pump driver module has detected a fault in the fuel pump secondary circuit

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1237 2008 Ford Fusion Code

1. What are the common symptoms of OBDII code P1237 in a 2008 Ford Fusion?

- Common symptoms include hard starting, engine stalling, loss of power, and the vehicle not starting at all.

2. What does the OBDII code P1237 in a 2008 Ford Fusion indicate?

- The code indicates a fault in the fuel pump secondary circuit.

3. What are the possible causes of OBDII code P1237 in a 2008 Ford Fusion?

- The possible causes include a faulty fuel pump driver module, wiring issues, a defective fuel pump, or a problem with the fuel pump relay.

4. How can I diagnose the OBDII code P1237 in my 2008 Ford Fusion?

- Diagnosis typically involves checking the fuel pump driver module, inspecting the wiring for damage, testing the fuel pump relay, and ensuring the fuel pump is functioning correctly.

5. Can I still drive my 2008 Ford Fusion with OBDII code P1237?

- It is not recommended to drive the vehicle with this code as it can lead to engine stalling and other potentially dangerous issues.

6. How can I repair OBDII code P1237 in my 2008 Ford Fusion?

- Repair options include replacing the fuel pump driver module, repairing any damaged wiring, replacing the fuel pump if necessary, and checking and replacing the fuel pump relay.

7. Is it possible to reset the OBDII code P1237 in my 2008 Ford Fusion without fixing the issue?

- While you can clear the code with an OBDII scanner, it is important to address the underlying problem to prevent further issues.

8. How much does it typically cost to repair OBDII code P1237 in a 2008 Ford Fusion?

- The cost of repairs can vary depending on the specific issue, but it may range from around $200 to $600 or more, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P1237 in a 2008 Ford Fusion?

- Depending on your skill level and access to tools, you may be able to diagnose and fix the issue yourself, but it is recommended to consult a professional if you are unsure.

10. Will OBDII code P1237 cause my 2008 Ford Fusion to fail an emissions test?

- Yes, this code can cause your vehicle to fail an emissions test due to the impact on fuel delivery and engine performance.

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